US4629226A - Pipe lap joint with collapsible sealing zone and band clamp - Google Patents

Pipe lap joint with collapsible sealing zone and band clamp Download PDF

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Publication number
US4629226A
US4629226A US06/723,910 US72391085A US4629226A US 4629226 A US4629226 A US 4629226A US 72391085 A US72391085 A US 72391085A US 4629226 A US4629226 A US 4629226A
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United States
Prior art keywords
pipe
sidewalls
band
slot
overlap region
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Expired - Lifetime
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US06/723,910
Inventor
Thomas R. Cassel
Scott T. Cassel
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Norma US Holding LLC
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BKS Co
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Publication date
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Priority to US06/723,910 priority Critical patent/US4629226A/en
Priority to KR1019860700883A priority patent/KR940009686B1/en
Priority to CA000505571A priority patent/CA1270016A/en
Priority to JP61501904A priority patent/JPH0660711B2/en
Priority to EP86902256A priority patent/EP0222784B1/en
Priority to AT86902256T priority patent/ATE51284T1/en
Priority to DE8686902256T priority patent/DE3669770D1/en
Priority to PCT/US1986/000663 priority patent/WO1986006145A1/en
Priority to AU56282/86A priority patent/AU592788B2/en
Assigned to BKS COMPANY, A MICHIGAN PARTNERSHIP reassignment BKS COMPANY, A MICHIGAN PARTNERSHIP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CASSEL, SCOTT T., CASSEL, THOMAS R.
Priority to ES1986296600U priority patent/ES296600Y/en
Publication of US4629226A publication Critical patent/US4629226A/en
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Assigned to BKS COMPANY, A GENERAL PARTNERSHIP reassignment BKS COMPANY, A GENERAL PARTNERSHIP CHANGE IN FORM OF PARTNERSHIP Assignors: BKS COMPANY, A LIMITED PARTNERSHIP
Assigned to BKS COMPANY, L.L.C. reassignment BKS COMPANY, L.L.C. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BKS COMPANY
Assigned to BREEZE-TORCA PRODUCTS, LLC reassignment BREEZE-TORCA PRODUCTS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BKS COMPANY, L.L.C.
Assigned to BREEZE-TORCA PRODUCTS, LLC reassignment BREEZE-TORCA PRODUCTS, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BKS COMPANY, L.L.C.
Assigned to ANTARES CAPITAL CORPORATION, AS AGENT reassignment ANTARES CAPITAL CORPORATION, AS AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BREEZE-TORCA PRODUCTS, LLC
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Assigned to ANTARES CAPITAL CORPORATION, AS FIRST LIEN COLLATERAL AGENT reassignment ANTARES CAPITAL CORPORATION, AS FIRST LIEN COLLATERAL AGENT SECURITY AGREEMENT Assignors: BREEZE-TORCA PRODUCTS, LLC
Assigned to ANTARES CAPITAL CORPORATION, AS SECOND LIEN COLLATERAL AGENT reassignment ANTARES CAPITAL CORPORATION, AS SECOND LIEN COLLATERAL AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BREEZE-TORCA PRODUCTS, LLC
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Assigned to BREEZE-TORCA PRODUCTS, LLC reassignment BREEZE-TORCA PRODUCTS, LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: ANTARES CAPITAL CORPORATION, AS FIRST LIEN COLLATERAL AGENT
Assigned to BREEZE-TORCA PRODUCTS, LLC reassignment BREEZE-TORCA PRODUCTS, LLC RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: ANTARES CAPITAL CORPORATION, AS SECOND LIEN COLLATERAL AGENT
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT SECURITY AGREEMENT Assignors: BREEZE-TORCA PRODUCTS, LLC
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/06Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/06Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
    • F16L21/065Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends tightened by tangentially-arranged threaded pins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines

Definitions

  • This invention relates to pipe couplings and more particularly, it relates to a pipe lap joint especially adapted for use in vehicle exhaust systems.
  • a pipe coupling with a lap joint for exhaust systems with high pull-apart strength and good fluid sealing is also disclosed in the Cassel U.S. Pat. No. 4,056,273 granted Nov. 1, 1977.
  • the coupling disclosed in this patent comprises a wide band clamp with a sealing ring disposed around the inner pipe and having an outer diameter about the same as that of the outer pipe. the wide band clamp covers the sealing ring and the end of the outer pipe, spanning the junction therebetween, and is stretched into tight engagement against the sealing ring and the outer pipe.
  • the coupling disclosed in this patent comprises an open sleeve which is stretched around the pipes.
  • the open sleeve comprises a roundish sector and a channel-shaped sector comprising a pair of sidewalls extending radially outwardly from the roundish sector.
  • Force applying means are connected with the sidewalls to draw them together so that the roundish sector of the sleeve is stretched over the pipes.
  • a pipe coupling of the lap type in which a fluid tight seal is provided with a clamping sleeve or band which engages the outer pipe only, i.e. which does not span the outer pipe and inner pipe.
  • the fluid seal is achieved by using an outer pipe with a collapsible sealing ring or zone at its free end which is collapsed into sealing engagement with the inner pipe by tightening a clamping band thereon.
  • a pipe lap joint of this type is disclosed in the Wagner et al U.S. Pat. No. 4,113,289 granted Sept. 12, 1978.
  • the collapsible sealing zone in the Wagner et al patent comprises several sets of slots which are disposed circumferentially around the end of the outer pipe. In each set of slots, there is an open slot which extends inwardly from the end of the pipe and an adjacent closed slot, i.e. it does not extend to the end of the pipe.
  • One difficulty with this sealing zone is that the slot structure exhibits a relatively high resistance to collapsing and accommodates a relatively small amount of reduction in the circumference of the pipe at each set of slots.
  • a lap joint of the type using a collapsible sealing zone is also disclosed in the aformentioned Cassel U.S. Pat. No.
  • a collapsible sealing ring forms an extension of the outer pipe but is separate therefrom.
  • This sealing ring is split so as to form a tongue on each free end with the tongues having complementary ramp surfaces in engagement with each other and which slide relative to each other when the ring is contracted or collapsed.
  • This sealing ring provides a good seal but the structure is not adapted to a sealing ring which is integral with the pipe end.
  • One difficulty is that it requires a shearing operation which results in bending in the region of the shear line and then requires reforming the pipe end.
  • a general object of this invention is to overcome certain disadvantages of the prior art and to provide an improved pipe lap joint.
  • an improved pipe lap joint which exhibits high pull apart strength, good fluid sealing and which is economical to manufacture.
  • an improved pipe lap joint in which the overlap region of the outside pipe comprises a collapsible sealing zone with at least one pair of intersecting end-to-end slots which afford relief for circumferential contraction with of sealing zone.
  • a clamping band is disposed around the outside pipe and covers the inboard slot. Tightening means are provided for clamping the band around the outside pipe to clamp the pipes together and collapse the sealing zone of the outer pipe into close fitting engagement with the inner pipe to cause sealing engagement of the outer pipe with the inner pipe and with the band.
  • the intersecting slots comprise an outboard slot with sidewalls extending inwardly from the end of the outside pipe and terminating in a transverse inner end wall within the overlap region, and an inboard slot circumferentially offset from the outboard slot with sidewalls extending axially inwardly from an outer end wall, the adjacent sidewalls of the slots being in substantial alignment with each other and the end walls being in substantial alignment with each other.
  • FIG. 1 is an exploded view of the lap joint of this invention showing the parts before they are assembled;
  • FIG. 2 shows the lap joint of this invention with the parts assembled and after the joint has been tightened
  • FIG. 3 is a view taken on lines 3--3 of FIG. 2;
  • FIG. 4 is a view taken on lines 4--4 of FIG. 2;
  • FIG. 5 shows the face of a punch for forming slots in one of the pipes.
  • the pipe joint 10 of this invention comprises, in general, inside and outside pipes 12 and 14, respectively, in a telescoping relationship with a band clamp 16 for holding the pipe together.
  • the outside pipe 14 has a lap portion which extends over the inside pipe 12 to provide an overlap region 18 of the pipes.
  • a radially collapsible sealing zone 22 is provided on the outise pipe 14 in the overlap region 18. The collapsible sealing zone 22 will be described in detail presently.
  • the sealing zone 22 comprises a ring shaped portion of the free end of the outside pipe 14. It is adapted to be contracted or collapsed in the radial direction by the clamp 16 so that the sealing zone 22 is in close fitting engagement with the inside pipe 12.
  • the sealing zone 22 is provided with a pair of intersecting slots 24 disposed in offset end-to-end relationship. In the illustrative embodiment, only a single pair of intersecting slots is used. However, in certain embodiments it may be desirable to use two pairs of slots, with one pair disposed diametrically opposite the other pair.
  • the pair of intersecting slots 24 is shown in FIG. 1 before the sealing zone 22 is collapsed, i.e. before the diameter of the sealing zone is reduced by the force of the clamp 16.
  • the pair of intersecting slots 24 comprises an outboard slot 26 is bounded by a pair of sidewalls 32 and 34 extending inwardly from the end of the outside pipe and terminating in a transverse inner end wall 36 within the overlap region 18.
  • the sidewalls 32 and 34 are substantially parallel to each other and to the axis of the pipe 14 whereas the end wall 36 extends obliquely of the sidewalls at a small angle from perpendicularity.
  • the inboard slot 38 is bounded by a pair of sidewalls 42 and 44 extending axially inwardly from an outer end wall 46 thereof to an inner end wall 48.
  • the end wall 36 of slot 26 and the end wall 46 of slot 38 lie on substantially the same line, i.e. they are in substantial alignment with each other. Also, the adjacent sidewalls, namely sidewall 34 and sidewall 42 are in substantial alignment with each other.
  • the slot 26 intersects the slot 38 between the corner formed by end wall 36 and sidewall 42 and the corner formed by end wall 46 and sidewall 34. These corners are detached from each other, at least over a portion of the pipe wall thickness as a result of the slot forming operation which will be described presently.
  • the pair of intersecting slots 24 is formed in the end of pipe 14 by a punching operation.
  • the inside pipe 12 has a nominal outside diameter of one and three-fourths inches and the end of the outer pipe 14 is expanded to form a loose fit over the inside pipe.
  • the wall thickness of the pipes is 0.048 inches.
  • the punch for forming the pair of slots 24 coacts with a horn die inside the pipe end and has a shape corresponding to the slots as shown in FIG. 1.
  • the punch face is shown in outline form in FIG. 5.
  • the punch is constructed as two separate punch segments, one for each of the slots, and the segments are mounted for movement in unison to punch the slots in a single stroke.
  • the die is constructed to mate with the punch in accordance with conventional practice. As a result, the punching operation causes the punch-out material to break away from the pipe wall around the periphery of the slots so that the slot dimensions are slightly larger on the inside diameter than on the outside diameter. Since the die segments have point contact at the point P, the corners of the slots 26 and 38 will be spaced apart, at least on the inside diameter of the pipe and the slots thereby intersect and are open to each other.
  • the clamp 16 comprises a clamping band 52 which is disposed around the outer pipe 14 over the sealing zone 22.
  • the clamping band 52 for sealing purposes, must cover the inboard slot 38 and cover the juncture of the end walls 36 and 46.
  • the clamping band 52 is provided with a tightening means 54.
  • the clamping band 52 is, for the most part, circular or roundish in cross-section. It has a roundish sector 56 adapted to fit around the sealing zone 22 on pipe 14 and a channel-shaped sector 58 which comprises a pair of sidewalls 62 and 64 extending radially outwardly from the roundish sector.
  • the clamping band 52 is made of a single piece of sheet metal and each free end thereof is folded back on itself to form a double layer.
  • the sidewalls 62 and 64 are of double thickness and terminate at their outer ends in respective loops or bights 66 and 68.
  • the bights 66 and 68 serve as retaining members for holding the sidewalls in place when the tightening means 54 is tightened, as will be described subsequently.
  • the clamping band 52 is tightened around the pipe 14 by the tightening means 54.
  • the tightening means comprises a reaction member or spline 72 which is disposed within the channel-shaped sector 58 and which is adapted to seat upon the outer surface of the sealing zone 22 of pipe 14.
  • the spline has an inner surface of arcuate configuration conforming to the pipe 14.
  • the spline 72 is provided with a pair of oppositely facing concave surfaces 74 and 76.
  • the tightening means includes a bolt 78 and a nut 82. It also includes a spacer 84 disposed outside the sidewall 64 and having a convex surface which is opposite the concave surface 74 of the spline 72.
  • the bolt 78 has a head 81 with a convex surface which is disposed outside the sidewall 64 opposite the concave surface 76 on the spline 72.
  • the bolt extends through holes in the sidewalls 74 and 76, the spline 72 and the spacer 84.
  • This tightening action of the clamp 16 exerts sufficient force on the sealing zone 22 to crush or collapse the sealing zone by partially closing the intersecting slots 24 with sliding engagement of the end walls 36 and 46 with each other.
  • the sealing zone 22 is radially collapsed into sealing engagement with the inside pipe 12 and the clamp 16 is in sealing engagement with the sealing zone over the inboard slot 38.
  • the engagement of the end walls 36 and 46 of the slots closes the path between the slots so that a good fluid seal of the joint is assured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Exhaust Silencers (AREA)
  • Joints With Sleeves (AREA)
  • Clamps And Clips (AREA)

Abstract

A pipe lap joint is disclosed with an improved sealing zone structure in the overlap region of the pipe. The sealing zone comprises a pair of end-to-end intersecting slots which are covered by a clamping band and which allow the sealing zone of the pipe to be collapsed against the inner pipe when the clamping band is tightened. The outboard slot extends inwardly from the end of the pipe and terminates in a transverse end wall within the overlap region. The inboard slot is circumferentially offset from the outboard slot and extends inwardly from an outer end wall thereof. The adjacent sidewalls of the slots are in substantial alignment with each other and the end walls are also in substantial alignment with each other whereby the end walls of the slots are disposed in edge-to-edge engagement with each other when the overlap region of the outer pipe is collapsed into close fitting engagement with the inner pipe.

Description

FIELD OF THE INVENTION
This invention relates to pipe couplings and more particularly, it relates to a pipe lap joint especially adapted for use in vehicle exhaust systems.
BACKGROUND OF THE INVENTION
In certain applications, especially in vehicle exhaust systems, it is desired to provide a pipe joint with a high pull apart strength and a good fluid seal between the pipes. This has been provided by a wide band clamp of the type in which the band is stretched over a butt joint with tight engagement against both pipes. This pipe coupling is disclosed in the Cassel U.S. Pat. No. 3,905,623 granted Sept. 16, 1975. This patent also dislcoses a lap joint in which the outer pipe serves as a clamping sleeve and receives the end of the other pipe in overlapping relationship. Force applying means are provided on the clamping sleeve to stretch the sleeve into tight engagement with the inner pipe.
A pipe coupling with a lap joint for exhaust systems with high pull-apart strength and good fluid sealing is also disclosed in the Cassel U.S. Pat. No. 4,056,273 granted Nov. 1, 1977. The coupling disclosed in this patent comprises a wide band clamp with a sealing ring disposed around the inner pipe and having an outer diameter about the same as that of the outer pipe. the wide band clamp covers the sealing ring and the end of the outer pipe, spanning the junction therebetween, and is stretched into tight engagement against the sealing ring and the outer pipe.
Another pipe coupling for lap joints with high pull-apart strength and good fluid sealing is disclosed in Cassel U.S. Pat. No. 4,312,527 granted Jan. 26, 1982. The coupling disclosed in this patent comprises an open sleeve which is stretched around the pipes. The open sleeve comprises a roundish sector and a channel-shaped sector comprising a pair of sidewalls extending radially outwardly from the roundish sector. Force applying means are connected with the sidewalls to draw them together so that the roundish sector of the sleeve is stretched over the pipes.
In certain applications in vehicle exhaust systems, it is desired to provide a pipe coupling of the lap type in which a fluid tight seal is provided with a clamping sleeve or band which engages the outer pipe only, i.e. which does not span the outer pipe and inner pipe. In such a pipe lap joint, the fluid seal is achieved by using an outer pipe with a collapsible sealing ring or zone at its free end which is collapsed into sealing engagement with the inner pipe by tightening a clamping band thereon. A pipe lap joint of this type is disclosed in the Wagner et al U.S. Pat. No. 4,113,289 granted Sept. 12, 1978.
The collapsible sealing zone in the Wagner et al patent comprises several sets of slots which are disposed circumferentially around the end of the outer pipe. In each set of slots, there is an open slot which extends inwardly from the end of the pipe and an adjacent closed slot, i.e. it does not extend to the end of the pipe. One difficulty with this sealing zone is that the slot structure exhibits a relatively high resistance to collapsing and accommodates a relatively small amount of reduction in the circumference of the pipe at each set of slots. A lap joint of the type using a collapsible sealing zone is also disclosed in the aformentioned Cassel U.S. Pat. No. 4,056,273 wherein a collapsible sealing ring forms an extension of the outer pipe but is separate therefrom. This sealing ring is split so as to form a tongue on each free end with the tongues having complementary ramp surfaces in engagement with each other and which slide relative to each other when the ring is contracted or collapsed. This sealing ring provides a good seal but the structure is not adapted to a sealing ring which is integral with the pipe end. One difficulty is that it requires a shearing operation which results in bending in the region of the shear line and then requires reforming the pipe end.
A general object of this invention is to overcome certain disadvantages of the prior art and to provide an improved pipe lap joint.
SUMMARY OF THE INVENTION
In accordance with this invention, an improved pipe lap joint is provided which exhibits high pull apart strength, good fluid sealing and which is economical to manufacture.
Further, in accordance with this invention, an improved pipe lap joint is provided in which the overlap region of the outside pipe comprises a collapsible sealing zone with at least one pair of intersecting end-to-end slots which afford relief for circumferential contraction with of sealing zone. A clamping band is disposed around the outside pipe and covers the inboard slot. Tightening means are provided for clamping the band around the outside pipe to clamp the pipes together and collapse the sealing zone of the outer pipe into close fitting engagement with the inner pipe to cause sealing engagement of the outer pipe with the inner pipe and with the band.
Further, in accordance with this invention, the intersecting slots comprise an outboard slot with sidewalls extending inwardly from the end of the outside pipe and terminating in a transverse inner end wall within the overlap region, and an inboard slot circumferentially offset from the outboard slot with sidewalls extending axially inwardly from an outer end wall, the adjacent sidewalls of the slots being in substantial alignment with each other and the end walls being in substantial alignment with each other.
A more complete understanding of this invention may be obtained from the detailed description that follows taken with the accompanying drawings.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view of the lap joint of this invention showing the parts before they are assembled;
FIG. 2 shows the lap joint of this invention with the parts assembled and after the joint has been tightened;
FIG. 3 is a view taken on lines 3--3 of FIG. 2;
FIG. 4 is a view taken on lines 4--4 of FIG. 2; and
FIG. 5 shows the face of a punch for forming slots in one of the pipes.
BEST MODE FOR CARRYING OUT THE INVENTION
Referring now to the drawings, there is shown an illustrative embodiment of the invention in a pipe lap joint which is especially adapted for use in vehicle exhaust systems. It will be appreciated as the description proceeds that the invention is useful in other embodiments and other applications.
As shown in the drawings, the pipe joint 10 of this invention comprises, in general, inside and outside pipes 12 and 14, respectively, in a telescoping relationship with a band clamp 16 for holding the pipe together. The outside pipe 14 has a lap portion which extends over the inside pipe 12 to provide an overlap region 18 of the pipes. In order to provide a fluid seal between the inside and outside pipes, a radially collapsible sealing zone 22 is provided on the outise pipe 14 in the overlap region 18. The collapsible sealing zone 22 will be described in detail presently.
The sealing zone 22 comprises a ring shaped portion of the free end of the outside pipe 14. It is adapted to be contracted or collapsed in the radial direction by the clamp 16 so that the sealing zone 22 is in close fitting engagement with the inside pipe 12. For this purpose, the sealing zone 22 is provided with a pair of intersecting slots 24 disposed in offset end-to-end relationship. In the illustrative embodiment, only a single pair of intersecting slots is used. However, in certain embodiments it may be desirable to use two pairs of slots, with one pair disposed diametrically opposite the other pair.
The pair of intersecting slots 24 is shown in FIG. 1 before the sealing zone 22 is collapsed, i.e. before the diameter of the sealing zone is reduced by the force of the clamp 16. The pair of intersecting slots 24 comprises an outboard slot 26 is bounded by a pair of sidewalls 32 and 34 extending inwardly from the end of the outside pipe and terminating in a transverse inner end wall 36 within the overlap region 18. The sidewalls 32 and 34 are substantially parallel to each other and to the axis of the pipe 14 whereas the end wall 36 extends obliquely of the sidewalls at a small angle from perpendicularity. The inboard slot 38 is bounded by a pair of sidewalls 42 and 44 extending axially inwardly from an outer end wall 46 thereof to an inner end wall 48. The end wall 36 of slot 26 and the end wall 46 of slot 38 lie on substantially the same line, i.e. they are in substantial alignment with each other. Also, the adjacent sidewalls, namely sidewall 34 and sidewall 42 are in substantial alignment with each other. The slot 26 intersects the slot 38 between the corner formed by end wall 36 and sidewall 42 and the corner formed by end wall 46 and sidewall 34. These corners are detached from each other, at least over a portion of the pipe wall thickness as a result of the slot forming operation which will be described presently.
The pair of intersecting slots 24 is formed in the end of pipe 14 by a punching operation. In the illustrative embodiment, the inside pipe 12 has a nominal outside diameter of one and three-fourths inches and the end of the outer pipe 14 is expanded to form a loose fit over the inside pipe. The wall thickness of the pipes is 0.048 inches. The punch for forming the pair of slots 24 coacts with a horn die inside the pipe end and has a shape corresponding to the slots as shown in FIG. 1. The punch face is shown in outline form in FIG. 5. The punch is constructed as two separate punch segments, one for each of the slots, and the segments are mounted for movement in unison to punch the slots in a single stroke. The puch dimensions for the illustrative embodiment are as follows: A=0.125 inches; B=0.250 inches; C=0.500 inches; D=0.938 inches; R=0.062 inches (radius) and F=4 degrees. The die is constructed to mate with the punch in accordance with conventional practice. As a result, the punching operation causes the punch-out material to break away from the pipe wall around the periphery of the slots so that the slot dimensions are slightly larger on the inside diameter than on the outside diameter. Since the die segments have point contact at the point P, the corners of the slots 26 and 38 will be spaced apart, at least on the inside diameter of the pipe and the slots thereby intersect and are open to each other.
The clamp 16 comprises a clamping band 52 which is disposed around the outer pipe 14 over the sealing zone 22. In particular, the clamping band 52, for sealing purposes, must cover the inboard slot 38 and cover the juncture of the end walls 36 and 46. The clamping band 52 is provided with a tightening means 54. The clamping band 52 is, for the most part, circular or roundish in cross-section. It has a roundish sector 56 adapted to fit around the sealing zone 22 on pipe 14 and a channel-shaped sector 58 which comprises a pair of sidewalls 62 and 64 extending radially outwardly from the roundish sector. The clamping band 52 is made of a single piece of sheet metal and each free end thereof is folded back on itself to form a double layer. Thus, the sidewalls 62 and 64 are of double thickness and terminate at their outer ends in respective loops or bights 66 and 68. The bights 66 and 68 serve as retaining members for holding the sidewalls in place when the tightening means 54 is tightened, as will be described subsequently.
The clamping band 52 is tightened around the pipe 14 by the tightening means 54. The tightening means comprises a reaction member or spline 72 which is disposed within the channel-shaped sector 58 and which is adapted to seat upon the outer surface of the sealing zone 22 of pipe 14. For this purpose, the spline has an inner surface of arcuate configuration conforming to the pipe 14. The spline 72 is provided with a pair of oppositely facing concave surfaces 74 and 76. The tightening means includes a bolt 78 and a nut 82. It also includes a spacer 84 disposed outside the sidewall 64 and having a convex surface which is opposite the concave surface 74 of the spline 72. The bolt 78 has a head 81 with a convex surface which is disposed outside the sidewall 64 opposite the concave surface 76 on the spline 72. The bolt extends through holes in the sidewalls 74 and 76, the spline 72 and the spacer 84.
When the pipe joint 10 is assembled and the nut 82 is tightened on the bolt 78, the relationship of the parts is as shown in FIGS. 2 and 4. It will be understood that, before the nut and bolt are tightened, the sidewalls 62 and 64 of the channel-shaped sector 58 are not seated against the spline 72. When the nut 82 is tightened, the bolt head 81 and the spacer 84 are drawn together and press the sidewalls 62 and 64 into seating engagement with the spline 72. As a result of this tightening action, the roundish sector 56 is stretched around the sealing zone 22 of the pipe 14 in tight engagement therewith. This tightening action of the clamp 16 exerts sufficient force on the sealing zone 22 to crush or collapse the sealing zone by partially closing the intersecting slots 24 with sliding engagement of the end walls 36 and 46 with each other. Thus, the sealing zone 22 is radially collapsed into sealing engagement with the inside pipe 12 and the clamp 16 is in sealing engagement with the sealing zone over the inboard slot 38. The engagement of the end walls 36 and 46 of the slots closes the path between the slots so that a good fluid seal of the joint is assured.
Although the description of this invention has been given with reference to a particular embodiment, it is not to be construed in a limiting sense. Many variations and modifications will now occur to those skilled in the art. For a definition of the invention reference is made to the appended claims.

Claims (5)

What is claimed is:
1. In a coupling for a pipe lap joint of the type comprising:
an inside pipe and an outside pipe in telescoping relationship to provide an overlap region on the end of each pipe, said overlap region on the outside pipe defining a circumferentially continuous area and at least one pair of axially extending slots, the first slot of each pair being disposed adjacent and through the end of said outer pipe and the second slot of each pair being spaced inwardly from the end of said outer pipe, a clamping band disposed around said outside pipe and covering said second slot, tightening means for clamping said band around said outside pipe to clamp the pipes together and collapse the overlap region of said outer pipe into close fitting engagement with said inner pipe to cause sealing engagement of said outer pipe with said inner pipe and with said band, the improvement wherein:
said first slot has sidewalls extending axially inwardly from the end of said outside pipe and terminates in a transverse inner end wall within said overlap region, said second slot is circumferentially offset from said first slot and has sidewalls extending axially inwardly from an outer end wall, the adjacent sidewalls of said slots being in substantial alignment with each other and said end walls being in substantial alignment with each other,
whereby said end walls of said slots are disposed in edge-to-edge engagement with each other when the overlap region of said outer pipe is collapsed into close fitting engagement with said inner pipe by clamping said band around said outside pipe.
2. The invention as defined in claim 1 wherein said end walls extend obliquely of said adjacent sidewalls.
3. The invention as defined in claim 1 wherein:
said band is an open loop with its free ends extending radially outwardly,
and said tightening means includes at least one bolt and nut extending through said free ends for drawing the ends together.
4. The invention as defined in claim 1 wherein:
said band has a cross-section including a roundish sector and a radailly projecting channel-shaped sector,
said channel-shaped sector comprises a pair of sidewalls extending outwardly from the roundish sector and being separated from each other at the outer ends to form an opening in the band,
a spline disposed between the sidewalls and having a pair of surfaces which are respectively opposite said pair of sidewalls, one of said surfaces of said spline being concave,
a bar disposed against one sidewall opposite said concave surface of the spline,
said tightening means including at least one bolt and nut with the bolt extending laterally through the said bar, sidewalls and spline and being adapted to force the sidewalls against the respective surfaces of the spline, whereby the band is stretched around said overlap region.
5. The invention as defined in claim 4 wherein:
said band comprises a single piece of sheet metal and each said sidewall is folded back on itself to provide a double layer of sheet metal.
US06/723,910 1985-04-12 1985-04-16 Pipe lap joint with collapsible sealing zone and band clamp Expired - Lifetime US4629226A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US06/723,910 US4629226A (en) 1985-04-16 1985-04-16 Pipe lap joint with collapsible sealing zone and band clamp
KR1019860700883A KR940009686B1 (en) 1985-04-12 1986-04-01 Pipe lap joint with collapsible sealing zone and band clamp
CA000505571A CA1270016A (en) 1985-04-12 1986-04-01 Pipe lap joint with collapsible sealing zone and band clamp
JP61501904A JPH0660711B2 (en) 1985-04-16 1986-04-01 Tube lap joint with crushable sealing area and band clamp
EP86902256A EP0222784B1 (en) 1985-04-16 1986-04-01 Pipe lap joint with collapsible sealing zone and band clamp
AT86902256T ATE51284T1 (en) 1985-04-16 1986-04-01 OVERLAPPED PIPE JOINT WITH COMPRESSABLE SEALING ZONE AND PIPE CLAMP.
DE8686902256T DE3669770D1 (en) 1985-04-16 1986-04-01 OVERLAPPING PIPE CONNECTION WITH COMPRESSIBLE SEALING ZONE AND PIPE CLAMP.
PCT/US1986/000663 WO1986006145A1 (en) 1985-04-16 1986-04-01 Pipe lap joint with collapsible sealing zone and band clamp
AU56282/86A AU592788B2 (en) 1985-04-12 1986-04-01 Pipe lap joint with collapsible sealing zone and band clamp
ES1986296600U ES296600Y (en) 1985-04-16 1986-04-11 A COUPLING FOR A JOINT OF TUBES WITH FLAP.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/723,910 US4629226A (en) 1985-04-16 1985-04-16 Pipe lap joint with collapsible sealing zone and band clamp

Publications (1)

Publication Number Publication Date
US4629226A true US4629226A (en) 1986-12-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US06/723,910 Expired - Lifetime US4629226A (en) 1985-04-12 1985-04-16 Pipe lap joint with collapsible sealing zone and band clamp

Country Status (8)

Country Link
US (1) US4629226A (en)
EP (1) EP0222784B1 (en)
JP (1) JPH0660711B2 (en)
KR (1) KR940009686B1 (en)
CA (1) CA1270016A (en)
DE (1) DE3669770D1 (en)
ES (1) ES296600Y (en)
WO (1) WO1986006145A1 (en)

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US5271648A (en) * 1992-06-22 1993-12-21 Eliezer Krausz Clamping and connecting means
WO1995020123A1 (en) * 1994-01-24 1995-07-27 Bks Company Lap joint between flex hose and rigid pipe
WO1996019692A1 (en) * 1994-12-20 1996-06-27 Bks Company Pipe lap joint with improved collapsible sealing zone
US5588680A (en) * 1994-12-20 1996-12-31 Bks Company Pipe lap joint with improved collapsible sealing zone
USD378659S (en) * 1995-06-05 1997-04-01 Ole Blennov Control cable clamp for motorcycles
US5845946A (en) * 1996-09-11 1998-12-08 Thomas; R. Winfield Corrugated flexible hose coupling system
US5857716A (en) * 1997-02-07 1999-01-12 Tru-Flex Metal Hose Corporation Corrugated flexible hose coupling system
US5924282A (en) * 1998-01-20 1999-07-20 Tru-Flex Metal Hose Corp. Vehicle with improved exhaust system for internal combustion engine
WO1999042707A1 (en) 1998-02-18 1999-08-26 Donaldson Company, Inc. U-bolt clamp for sealing lap joints
US5944365A (en) * 1996-09-25 1999-08-31 Daimler-Benz Aktiengesellschaft Pipe clamp with a headed bolt for securing a pipe connection
US6062610A (en) * 1995-12-18 2000-05-16 Lindab Ab Device for the coupling together of pipes
US6073977A (en) * 1994-09-08 2000-06-13 Lindab Ab Device for coupling pipe sections
US6089624A (en) * 1998-05-12 2000-07-18 Bks Company Pipe lap joint with improved collapsible slot
US6102446A (en) * 1999-02-06 2000-08-15 Tru-Flex Metal Hose Corporation Polygonal flexible metal hose coupling assembly
US6102445A (en) * 1996-09-11 2000-08-15 Tru-Flex Metal Hose Corporation Sealed coupling system for flexible hose
US6116659A (en) * 1998-02-24 2000-09-12 Donaldson Company, Inc. Band clamp for sealing lap joints and method thereof
US6123369A (en) * 1998-12-02 2000-09-26 Donaldson Company, Inc. Pipe lap joint and methods
US6199921B1 (en) * 1998-06-05 2001-03-13 Bks Company, Llc Pipe lap joint with bridged slot
US6234541B1 (en) 1998-02-18 2001-05-22 Donaldson Company, Inc. U-bolt clamp for sealing lap joints
US6305054B1 (en) 1999-07-02 2001-10-23 Donaldson Company, Inc. Exhaust system clamp
US6435565B2 (en) * 2000-07-18 2002-08-20 Bks Company Llc Clamp for closely spaced pipes
US6488316B1 (en) 2001-06-08 2002-12-03 Tru-Flex Metal Hose Corp. Flexible metal hose termination fitting with adapter for termination plate
US6508277B1 (en) 1999-07-27 2003-01-21 Donaldson Company, Inc. Flexible pipe with compressed ends
US6557908B2 (en) 2001-07-25 2003-05-06 Arvin Technologies, Inc. Exhaust system clamp assembly and associated method
US20040094674A1 (en) * 2001-07-10 2004-05-20 Alexander Bozmoski Exhaust clamp for a motorcycle
US6758501B2 (en) 2000-06-23 2004-07-06 Breeze-Torca Products, Llc Pipe coupler
US20040261227A1 (en) * 2003-03-06 2004-12-30 Breeze-Torca Products, Llc Band clamp with reaction member
US6877191B2 (en) 2001-09-17 2005-04-12 Dwws, Llc Band clamp
US6877780B2 (en) 2000-06-23 2005-04-12 Breeze-Torca Products, Llc Clamp for joining tubular bodies
US20050099001A1 (en) * 2003-11-07 2005-05-12 Breeze-Torca Products, Llc Pipe clamp with integral latch
US20050189768A1 (en) * 2004-02-26 2005-09-01 Breeze-Torca Products, Llc Pipe clamp with button engagement hole
WO2005079297A3 (en) * 2004-02-13 2005-11-10 Breeze Torca Products Llc Slotted pipe clamp with opposed flange engagement loops
US20050274856A1 (en) * 2004-06-15 2005-12-15 Knight Henry H Ii Clamp for use with motorcycle accessories
US20050284456A1 (en) * 2004-05-18 2005-12-29 Jason Chipley Adjustable paintball drop tube
US20060071471A1 (en) * 2004-10-04 2006-04-06 Breeze-Torca Products, Llc Pipe lap joint with improved sealing slot for increased circumferential closure
WO2006055966A2 (en) 2004-11-19 2006-05-26 Breeze-Torca Products, Llc Pipe clamp with improved fastener
US20060175837A1 (en) * 2005-02-10 2006-08-10 Breeze-Torca Products, Llc Pipe clamp with gasketed center rib
US7114330B1 (en) 2003-02-28 2006-10-03 Fleetguard, Inc. Vertical exhaust water trap assembly
US20070039316A1 (en) * 2003-02-28 2007-02-22 Bosanec John M Jr Compact combination exhaust muffler and aftertreatment element and water trap assembly
US20070169452A1 (en) * 2006-01-26 2007-07-26 Grimm David M Serviceable aligned exhaust aftertreatment assembly
EP1816325A1 (en) * 2006-02-01 2007-08-08 Tru-Flex Metal Hose Corp. Exhaust pipe joint with insert
US7347044B1 (en) 2003-02-28 2008-03-25 Fleetguard, Inc. Exhaust water trap
US20080185841A1 (en) * 2007-02-04 2008-08-07 Breeze-Torca Products, Llc Stepped ball joint pipe clamp and pre-attachment components therefor
US7429054B1 (en) 2005-12-14 2008-09-30 Heckethorn Products, Inc. Non-drop torsion bar bracket and assembly
US7582267B1 (en) 2005-10-05 2009-09-01 Fleetguard, Inc. Space saving serviceable exhaust aftertreatment assembly
US20100178860A1 (en) * 2009-01-15 2010-07-15 Eric Brunette Positive pressure pipe coupling
US20110020160A1 (en) * 2009-07-23 2011-01-27 Pcm Processing Cavity Pump and an Associated Pump Device
US20130026749A1 (en) * 2011-07-29 2013-01-31 Magna International Inc. Hybrid fascia mounted exhaust tip assembly
US20130161112A1 (en) * 2011-12-22 2013-06-27 Caterpillar Inc. Modular exhaust carrier
DE102012005198A1 (en) 2012-03-16 2013-09-19 Tenneco Gmbh Pipe connection unit i.e. solder joint, for use in exhaust gas component, has exhaust tubes comprising tube wall ends with central axis, where length over dimension is greater than length of recesses that are formed in one tube wall end
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US9145819B2 (en) * 2011-07-29 2015-09-29 Magna International Inc. Hybrid fascia mounted exhaust tip assembly
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US20180238485A1 (en) * 2017-02-20 2018-08-23 Pridgeon & Clay, Inc. Pipe and Clamp Assembly
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Cited By (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271648A (en) * 1992-06-22 1993-12-21 Eliezer Krausz Clamping and connecting means
WO1995020123A1 (en) * 1994-01-24 1995-07-27 Bks Company Lap joint between flex hose and rigid pipe
US5632513A (en) * 1994-01-24 1997-05-27 Bks Company Lap joint between flex hose and rigid pipe
US6073977A (en) * 1994-09-08 2000-06-13 Lindab Ab Device for coupling pipe sections
WO1996019692A1 (en) * 1994-12-20 1996-06-27 Bks Company Pipe lap joint with improved collapsible sealing zone
US5588680A (en) * 1994-12-20 1996-12-31 Bks Company Pipe lap joint with improved collapsible sealing zone
USD378659S (en) * 1995-06-05 1997-04-01 Ole Blennov Control cable clamp for motorcycles
US6062610A (en) * 1995-12-18 2000-05-16 Lindab Ab Device for the coupling together of pipes
US5845946A (en) * 1996-09-11 1998-12-08 Thomas; R. Winfield Corrugated flexible hose coupling system
US6102445A (en) * 1996-09-11 2000-08-15 Tru-Flex Metal Hose Corporation Sealed coupling system for flexible hose
US5944365A (en) * 1996-09-25 1999-08-31 Daimler-Benz Aktiengesellschaft Pipe clamp with a headed bolt for securing a pipe connection
US5857716A (en) * 1997-02-07 1999-01-12 Tru-Flex Metal Hose Corporation Corrugated flexible hose coupling system
US5924282A (en) * 1998-01-20 1999-07-20 Tru-Flex Metal Hose Corp. Vehicle with improved exhaust system for internal combustion engine
WO1999042707A1 (en) 1998-02-18 1999-08-26 Donaldson Company, Inc. U-bolt clamp for sealing lap joints
US6234541B1 (en) 1998-02-18 2001-05-22 Donaldson Company, Inc. U-bolt clamp for sealing lap joints
US6116659A (en) * 1998-02-24 2000-09-12 Donaldson Company, Inc. Band clamp for sealing lap joints and method thereof
US6089624A (en) * 1998-05-12 2000-07-18 Bks Company Pipe lap joint with improved collapsible slot
US6199921B1 (en) * 1998-06-05 2001-03-13 Bks Company, Llc Pipe lap joint with bridged slot
US6123369A (en) * 1998-12-02 2000-09-26 Donaldson Company, Inc. Pipe lap joint and methods
US6102446A (en) * 1999-02-06 2000-08-15 Tru-Flex Metal Hose Corporation Polygonal flexible metal hose coupling assembly
US6305054B1 (en) 1999-07-02 2001-10-23 Donaldson Company, Inc. Exhaust system clamp
US6508277B1 (en) 1999-07-27 2003-01-21 Donaldson Company, Inc. Flexible pipe with compressed ends
US20060138776A1 (en) * 2000-06-23 2006-06-29 Breeze-Torca Products, Llc Pipe coupling with tongue and groove sealing sleeve
US6877780B2 (en) 2000-06-23 2005-04-12 Breeze-Torca Products, Llc Clamp for joining tubular bodies
US6758501B2 (en) 2000-06-23 2004-07-06 Breeze-Torca Products, Llc Pipe coupler
US20040222633A1 (en) * 2000-06-23 2004-11-11 Breeze-Torca Products, Llc Pipe coupler with tongue and groove sealing sleeve
US7025393B2 (en) * 2000-06-23 2006-04-11 Breeze-Torca Products, Llc Pipe coupler with tongue and groove sealing sleeve
US7252310B2 (en) * 2000-06-23 2007-08-07 Breeze-Torca Products, Llc Pipe coupling with tongue and groove sealing sleeve
US6435565B2 (en) * 2000-07-18 2002-08-20 Bks Company Llc Clamp for closely spaced pipes
US6488316B1 (en) 2001-06-08 2002-12-03 Tru-Flex Metal Hose Corp. Flexible metal hose termination fitting with adapter for termination plate
US7401753B2 (en) * 2001-07-10 2008-07-22 Harley-Davidson Motor Company Group, Inc. Exhaust clamp for a motorcycle
US20040094674A1 (en) * 2001-07-10 2004-05-20 Alexander Bozmoski Exhaust clamp for a motorcycle
US6557908B2 (en) 2001-07-25 2003-05-06 Arvin Technologies, Inc. Exhaust system clamp assembly and associated method
US6877191B2 (en) 2001-09-17 2005-04-12 Dwws, Llc Band clamp
US20070039316A1 (en) * 2003-02-28 2007-02-22 Bosanec John M Jr Compact combination exhaust muffler and aftertreatment element and water trap assembly
US7114330B1 (en) 2003-02-28 2006-10-03 Fleetguard, Inc. Vertical exhaust water trap assembly
US7347044B1 (en) 2003-02-28 2008-03-25 Fleetguard, Inc. Exhaust water trap
US7713493B2 (en) 2003-02-28 2010-05-11 Fleetguard, Inc. Compact combination exhaust muffler and aftertreatment element and water trap assembly
US20040261227A1 (en) * 2003-03-06 2004-12-30 Breeze-Torca Products, Llc Band clamp with reaction member
US7458619B2 (en) 2003-11-07 2008-12-02 Breeze-Torca Products, Llc Pipe clamp with integral latch
US20090079189A1 (en) * 2003-11-07 2009-03-26 Breeze-Torca Products, Llc Pipe clamp with integral latch
US7832776B2 (en) 2003-11-07 2010-11-16 Norma U.S. Holding Llc Pipe clamp with integral latch
US20050099001A1 (en) * 2003-11-07 2005-05-12 Breeze-Torca Products, Llc Pipe clamp with integral latch
WO2005079297A3 (en) * 2004-02-13 2005-11-10 Breeze Torca Products Llc Slotted pipe clamp with opposed flange engagement loops
US20060192385A1 (en) * 2004-02-13 2006-08-31 Breeze-Torca Products, Llc Slotted pipe clamp with opposed flange engagement loops
CN1910394B (en) * 2004-02-13 2012-07-18 布雷兹-托卡产品有限责任公司 Slotted pipe clamp with opposed flange engagement loops
US7475919B2 (en) 2004-02-13 2009-01-13 Breeze-Torca Products, Llc Slotted pipe clamp with opposed flange engagement loops
US20050189768A1 (en) * 2004-02-26 2005-09-01 Breeze-Torca Products, Llc Pipe clamp with button engagement hole
US7490871B2 (en) 2004-02-26 2009-02-17 Breeze-Torca Products, Llc Pipe clamp with button engagement hole
US20050284456A1 (en) * 2004-05-18 2005-12-29 Jason Chipley Adjustable paintball drop tube
US20050274856A1 (en) * 2004-06-15 2005-12-15 Knight Henry H Ii Clamp for use with motorcycle accessories
WO2006041752A3 (en) * 2004-10-04 2006-12-28 Breeze Torca Products Llc Pipe lap joint with improved sealing slot for increased circumferential closure
US7246826B2 (en) * 2004-10-04 2007-07-24 Breeze-Torce Products, Llc Pipe lap joint with improved sealing slot for increased circumferential closure
WO2006041752A2 (en) 2004-10-04 2006-04-20 Breeze-Torca Products, Llc Pipe lap joint with improved sealing slot for increased circumferential closure
US20060071471A1 (en) * 2004-10-04 2006-04-06 Breeze-Torca Products, Llc Pipe lap joint with improved sealing slot for increased circumferential closure
WO2006055966A2 (en) 2004-11-19 2006-05-26 Breeze-Torca Products, Llc Pipe clamp with improved fastener
US20060175837A1 (en) * 2005-02-10 2006-08-10 Breeze-Torca Products, Llc Pipe clamp with gasketed center rib
US7520539B2 (en) * 2005-02-10 2009-04-21 Breeze-Torca Products, Llc Pipe clamp with gasketed center rib
US7582267B1 (en) 2005-10-05 2009-09-01 Fleetguard, Inc. Space saving serviceable exhaust aftertreatment assembly
US7429054B1 (en) 2005-12-14 2008-09-30 Heckethorn Products, Inc. Non-drop torsion bar bracket and assembly
US20070169452A1 (en) * 2006-01-26 2007-07-26 Grimm David M Serviceable aligned exhaust aftertreatment assembly
US7517380B2 (en) 2006-01-26 2009-04-14 Fleetguard, Inc. Serviceable aligned exhaust aftertreatment assembly
US7775561B2 (en) 2006-02-01 2010-08-17 Tru-Flex Metal Hose Corp. Exhaust pipe joint with insert
EP1816325A1 (en) * 2006-02-01 2007-08-08 Tru-Flex Metal Hose Corp. Exhaust pipe joint with insert
US7770937B2 (en) 2007-02-04 2010-08-10 Breeze-Torca Products, Llc Stepped ball joint pipe clamp and pre-attachment components therefor
US20080185841A1 (en) * 2007-02-04 2008-08-07 Breeze-Torca Products, Llc Stepped ball joint pipe clamp and pre-attachment components therefor
US20100178860A1 (en) * 2009-01-15 2010-07-15 Eric Brunette Positive pressure pipe coupling
US9285066B2 (en) * 2009-01-15 2016-03-15 Cheminee Securite International Ltee Positive pressure pipe coupling
US20110020160A1 (en) * 2009-07-23 2011-01-27 Pcm Processing Cavity Pump and an Associated Pump Device
US9145819B2 (en) * 2011-07-29 2015-09-29 Magna International Inc. Hybrid fascia mounted exhaust tip assembly
US8863886B2 (en) * 2011-07-29 2014-10-21 Magna International Inc. Hybrid fascia mounted exhaust tip assembly
US20130026749A1 (en) * 2011-07-29 2013-01-31 Magna International Inc. Hybrid fascia mounted exhaust tip assembly
US9322318B2 (en) 2011-07-29 2016-04-26 Magna International Inc. Hybrid fascia mounted exhaust tip assembly
US20130161112A1 (en) * 2011-12-22 2013-06-27 Caterpillar Inc. Modular exhaust carrier
DE102012005198B4 (en) * 2012-03-16 2017-05-11 Tenneco Gmbh Pipe connection with slotted tube wall end and method for its production
DE102012005198A1 (en) 2012-03-16 2013-09-19 Tenneco Gmbh Pipe connection unit i.e. solder joint, for use in exhaust gas component, has exhaust tubes comprising tube wall ends with central axis, where length over dimension is greater than length of recesses that are formed in one tube wall end
CN104458135A (en) * 2013-09-25 2015-03-25 山东省水利科学研究院 Pipeline pressure testing device and using method
DE102015208768B4 (en) * 2015-05-12 2017-09-14 Bayerische Motoren Werke Aktiengesellschaft Vehicle with an exhaust system and method for replacing a silencer of an exhaust system of a vehicle
DE102015208768A1 (en) * 2015-05-12 2016-11-17 Bayerische Motoren Werke Aktiengesellschaft Connecting pipe piece for an exhaust system of a vehicle, vehicle with an exhaust system and method for replacing a silencer of an exhaust system of a vehicle
US20180238485A1 (en) * 2017-02-20 2018-08-23 Pridgeon & Clay, Inc. Pipe and Clamp Assembly
US10436099B2 (en) 2017-04-06 2019-10-08 Tenneco Automotive Operating Company Inc. Exhaust conduit hanger
EP3401584A1 (en) * 2017-05-11 2018-11-14 Eberspächer Exhaust Technology GmbH & Co. KG Pipe, in particular exhaust pipe
DE102017110217A1 (en) 2017-05-11 2018-11-29 Eberspächer Exhaust Technology GmbH & Co. KG Pipe, in particular exhaust pipe
US11125138B2 (en) 2017-05-11 2021-09-21 Purem GmbH Pipe, especially exhaust gas-guiding pipe
CN111076002A (en) * 2018-10-19 2020-04-28 北汽福田汽车股份有限公司 Pipeline connection structure, blast pipe and vehicle
US11280443B2 (en) * 2020-05-19 2022-03-22 ASC Engineered Solutions, LLC Insulting support bracket for jacketed pipe system
US11686422B2 (en) 2020-05-19 2023-06-27 ASC Engineered Solutions, LLC Insulating support bracket for jacketed pipe system
US12055264B2 (en) 2020-05-19 2024-08-06 ASC Engineered Solutions, LLC Insulating support bracket for jacketed pipe system

Also Published As

Publication number Publication date
EP0222784B1 (en) 1990-03-21
EP0222784A1 (en) 1987-05-27
JPS62502488A (en) 1987-09-24
DE3669770D1 (en) 1990-04-26
EP0222784A4 (en) 1988-03-18
CA1270016A (en) 1990-06-05
WO1986006145A1 (en) 1986-10-23
JPH0660711B2 (en) 1994-08-10
KR940009686B1 (en) 1994-10-15
ES296600Y (en) 1988-05-16
KR880700205A (en) 1988-02-20
ES296600U (en) 1987-12-01

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